VDF_Displayer_Driver_V1.0

Overview

VFD driver module, adapted to the hardware GP1287BI screen.

Go to Taobao to buy the screen.

PCB information:

The driver module is a 4-layer board that provides USB/driver board dual power supply and is isolated by diodes.

Main functions of the board

Lead to the SPI interface and screen enable interface.
The onboard op07 follows the circuit directly through the microcontroller for collecting optocoupler signals.
The onboard USB interface can be directly connected to the computer for communication through the USB type-C interface.
Onboard Bluetooth to serial port module: CH9140
It can be powered by an external lithium battery and is equipped with a lithium battery charging management chip and a charge and discharge protection chip.

Main issues now:

The BOOST current of the lithium battery boost circuit is too large, and an external lithium battery must be connected to work properly .

Design Files

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Update:2025-08-04 16:33:20

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